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Finding the Fourth Proportional to 7,860.71, 11,795.12 and 3,481.26

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Solution

The fourth proportional to 7,860.71, 11,795.12 and 3,481.26 is: 5,223.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.71 : 11,795.12 = 3,481.26 : x
  2. Step 2: Convert to fraction form
    7,860.71/11,795.12 = 3,481.26/x
  3. Step 3: Cross multiply
    7,860.71x = 11,795.12 × 3,481.26
  4. Step 4: Simplify right side
    7,860.71x = 41,061,862.04
  5. Step 5: Solve for x
    x = 41,061,862.04/7,860.71
  6. Step 6: Final answer
    x = 5,223.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.